Electrolux Dryer Error Code 0xB3

Code 0xB3 means the dryer's main control board has detected that the incoming line voltage is below the acceptable operating range. This is described as a Power Supply Amplitude Out of Range fault on the low side. It can result from an actual low-voltage condition at your home's electrical circuit or from a failure in the main control board's voltage sensing components. The dryer will not operate normally while this condition is present.

You should not continue operating the dryer with this fault active. Low line voltage can cause motors and heating components to draw excessive current, generating heat that can damage internal parts or create a fire hazard. Resolve the electrical supply issue or board fault before resuming use.

Repair costs vary depending on the root cause. If the fix involves tightening connections or resetting a circuit breaker, there may be no parts cost at all. A replacement circuit breaker or power cord typically runs in the range of $15 to $80 in parts. If the main control board requires replacement, parts alone can range from $100 to $300 or more, with additional labor costs if a technician is needed.

Start by measuring the voltage at the dryer's wall outlet or the terminal block inside the dryer using a multimeter to confirm it meets the product's specified line voltage requirement. Also check the circuit breaker for a partial trip and inspect all power cord and terminal block connections for looseness or corrosion. If the supply voltage is confirmed correct and connections are secure, the main control board is the likely cause and will need to be replaced.

A power reset may temporarily clear the code, but it will return if the underlying cause is not corrected. If the line voltage remains below specification or the control board's sensing circuit is faulty, the fault will be detected again as soon as the dryer powers up and begins monitoring. Always address the root cause rather than relying on resets.